Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Gessi 316 Cesello single-lever basin mixer. Please read these instructions carefully before installation and use, and retain them for future reference. Proper installation and care will ensure optimal performance and longevity of your product.
Safety Information
- Always turn off the main water supply before beginning any installation, maintenance, or repair work.
- Ensure all connections are secure and watertight to prevent leaks.
- Use appropriate tools and protective equipment during installation.
- If you are unsure about any step or encounter difficulties, consult a qualified plumber or professional installer.
- Do not use abrasive cleaners or harsh chemicals on the mixer's surface, as this may damage the finish.
Package Contents
Verify that all components are present before beginning installation:
- 1x Gessi 316 Cesello Single-Lever Basin Mixer (High Version 228 mm)
- Connection Hoses (3/8")
- Handle Pins for Actuation (32 mm and 61 mm)
- Mounting Hardware
Note: The waste assembly is not included with this product and must be purchased separately if required.
Setup (Installation)
Follow these steps for proper installation of your basin mixer:
- Prepare the Basin: Ensure the basin or countertop has the correct mounting hole for the mixer. Clean the area thoroughly.
- Install Mixer: Insert the mixer's threaded rod through the mounting hole from above. Ensure any rubber or metal washers are correctly positioned between the mixer base and the basin surface to create a watertight seal.
- Secure Mixer: From underneath the basin, slide the metal washer and then the fixing nut onto the threaded rod. Tighten the nut securely using an appropriate wrench until the mixer is stable and does not wobble. Do not overtighten.
- Connect Water Hoses: Attach the flexible connection hoses (3/8") to the corresponding hot and cold water inlets on the mixer. Ensure a tight seal.
- Connect to Water Supply: Connect the other ends of the flexible hoses to your hot and cold water supply lines. Use thread seal tape or sealant if recommended by local plumbing codes.
- Install Handle Pins: Insert the chosen handle pin (32 mm or 61 mm) into the mixer handle.
- Test for Leaks: Slowly turn on the main water supply. Check all connections for any signs of leaks. If leaks are detected, turn off the water supply and tighten the connections as needed.

Image: The Gessi 316 Cesello single-lever basin mixer, showcasing its design and warm brushed bronze finish. This high version is designed for use with countertop basins.
Operating Instructions
The Gessi 316 Cesello mixer features a single lever for controlling both water flow and temperature.
- Water Flow Control: To turn on the water, lift the lever upwards. The further you lift the lever, the greater the water flow. To reduce flow or turn off the water, lower the lever.
- Temperature Control: To adjust the water temperature, move the lever horizontally. Moving the lever to the left will increase the hot water proportion, while moving it to the right will increase the cold water proportion.
Maintenance
Regular maintenance will help preserve the appearance and functionality of your mixer.
- Cleaning the Surface: Clean the mixer regularly with a soft, damp cloth and a mild, non-abrasive soap solution. Rinse thoroughly with clean water and dry with a soft cloth to prevent water spots.
- Avoid Harsh Cleaners: Do not use abrasive cleaners, scouring pads, ammonia-based products, or chemical solvents, as these can damage the finish and void the warranty.
- Aerator Cleaning: If water flow becomes restricted, the aerator at the spout tip may be clogged. Unscrew the aerator, clean any debris or mineral deposits, and then reattach it.
- Leak Checks: Periodically inspect all connections under the basin for any signs of leakage. Tighten connections gently if necessary.
Troubleshooting
Refer to this section for common issues and their solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Low Water Flow | Partially closed water supply valves; clogged aerator; kinked supply hose. | Ensure water supply valves are fully open. Clean or replace the aerator. Check supply hoses for kinks. |
| Leaks at Connections | Loose connections; damaged washers or seals. | Tighten connections gently. Replace worn or damaged washers/seals. |
| Incorrect Water Temperature | Hot/cold supply lines reversed; water heater setting too low/high. | Verify hot and cold supply lines are connected correctly. Adjust water heater temperature. |
| Handle is Stiff or Loose | Mineral buildup; loose cartridge nut. | Clean around the handle base. Consult a plumber if cartridge replacement is needed. |
Specifications
| Brand: | Gessi |
| Model Name/Number: | 54409726 |
| Product Type: | Single-Lever Basin Mixer |
| Version: | High, 228 mm |
| Projection: | 122 mm |
| Color: | Warm Brushed Bronze |
| Connection Hoses: | 3/8" |
| Waste: | Not included |
| Item Dimensions (D x W x H): | 30.6 x 50.6 x 8.6 cm |
| Country of Origin: | Italy |
| Number of Items: | 1 |
Warranty Information
For detailed warranty information regarding your Gessi 316 Cesello basin mixer, please refer to the official Gessi website or the warranty documentation provided with your purchase. It is important to retain your proof of purchase for any warranty claims.
Support
Should you require technical assistance, spare parts, or have any questions not covered in this manual, please contact Gessi customer support or your authorized Gessi dealer. Contact details can typically be found on the official Gessi website or in your product documentation.